The valve is inserted through the backside of the wheel and clamped from the front with a nut and washer
A metal, or metal and rubber, tubular stem containing a valve core and cap. The mounting end may have a base with a fitting designed for mounting on a pneumatic tire, inner tube, or tire rim, to permit and retain inflation or permit deflation. The mounting end may be internally threaded for adaptability to a valve spud or may be provided with cure-on or clamp in features. The other end is externally threaded to accommodate a valve cap, and internally threaded to accommodate the valve core.
Dept. of the Army 
Dept. of the Air Force 
U.s. Marine Corps 
Dept. of the Navy 
U.s. Postal Service - Procurement and Supplies Dept. Classification: Other taps, cocks, valves, etc., nesoi
NSN 5910-01-523-6426
NSN 6240-01-054-7185
NSN 5996-01-419-1201
NSN 6645-00-144-4868
NSN 5990-01-123-6557
NSN 5945-00-248-6798
NSN 6135-01-278-9717
NSN 5960-00-074-8968
NSN 6105-01-184-8660
NSN 6620-00-321-3630
NSN 6320-00-853-1920
NSN 5895-00-518-1593